1-4
: 1L+3M change places RH, cast to right, 1L to 2nd place opp side, 3M to
  2nd place opp side **while** Bar 3, 2M follows 1L to 3rd place facing
  up & 2L follows 3M to 1st place facing down
5-8
: 1L+2M also 3M+2L 1/2 turn RH & they set
9-16
: 1M+3L repeat, changing places LH, casting left (followed by 2M & 2L),
  1M+2L & 3L+2M 1/2 turn LH & they set. (3) 2 (1)
17-24
: 3s (at top) cross RH, cast (2s step up); 1s (3rd place) cross RH & cast
  up 1 place (3s step down). 2 1 3
25-32
: 2s+1s+3s Adv+Ret; all turn partner RH